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DOT hydrostatic pressure test
All cylinders are tested under the most stringent DOT test to ensure you are using the safest tanks available.

Cylinder Certification

Recovery Cylinder Hydrotest & Refurbish Program

Refrigerant recovery cylinders require a Department of Transportation (DOT) hydrostatic recertification every 5 years. This requires the cylinder to have a visual, internal and external examination. All tanks must pass a hydrostatic pressure test to prove strength and integrity.

Hydrostatic test & recertification


  • removal of oil 
  • hydrostatic test
  • internal drying
  • dip tube inspection and replacement as needed
  • dual port valve inspection and replacement as needed
  • test date stamped on cylinder

We service the following size of cylinders: 30/50 lb.recovery cylinders (DOT 4BA,4BW)
96 lb..recovery cylinders (DOT)
125 lb..recovery cylinders (DOT 4BA,4BW)
240 lb. recovery cylinders (DOT 4BA,4BW)
1000 lb..recovery cylinders (DOT 4BA,4BW)
Contact us today! (888)881-3111
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